Music-roll-perforating machine.



E. W. MYERS.

MUSIC ROLL PERFORATING MACHINE.

APPLICATION FILED FEB. 2. 1917.

1 ,256,722. Patented Feb. 19, 1918.

2 SHEETSSHEET I K M 5 W m (i I 6. 7 ll VI 1 I 12 g l- 3 14* in; 6

in "3 y VZLEQ i 1 WW 1 2/, f i \II J 45 El i \VITNESSES: INVEN'LOR Edgar Myers,

E. W. MYERS.

MUSIC ROLL PERFORATING MACHINE.

APPLICATION FILED FEB. 2. l9l7.

1,256,722. Patented Feb. 19,1918.

2 SHEETSSHEET 2- .1 W2;

INX'ENTOR E a e s, 3%? y r EDGAR W. MYERS, OF SAN JOSE, CALIFORNIA, ASSIGNOR '10 MASTER ROLL MUSIC DUPLICATING 00., OF SAN JOSE, CALIFORNIA, A CORPORATION OF CALIFORNIA.

MUSIC-ROLL-PERFORATING MACHINE.

Application filed February 2, 1917.

I To all whom it may concern:

Be it known that I, EDGAR W. MYERS, a citizen of the United States, residing at San Jose, in the county of Santa Clara and State of California, have invented new and useful Improvements in Music Roll- Perforating Machines, of which the following is a specification.

This invention relates to paper perforating machines, and in particular to that class known as music roll perforating machines. 1 l

It is the object of this invention to produce a perforating machine which may be directly connected with the key action of a piano insuch a manner that the perforating mechanism will be actuated by the piano key action, and produce a series of perforations on a traveling recording sheet, known as the master sheet, and which may later be used for duplicating purposes in a duplicating machine. I

The particular improvement in the present application resides in the perforating mechanismand in certain other details of construction, combinations and arrangements of parts, all of which will be hereinafter more particularly set forth in the following drawings and specifications.

Figure 1 is an end view, partly in section, showing the paper perforating mechanism.

Fig. 2 is a plan view of the machine partly broken away.

In the accompanying drawings A indicates a suitable frame, consisting of two end sections tied together and braced by rods 2 and 3. Extending across and connecting the two end frames is a stationary shaft 4, on which is pivotally mounted a series of hellcrank levers 5, the number of levers 5 corresponding with the number of keys on the piano. The bell-crank levers 5, are connected with the key action of the piano at any point by any suitable connections, as the wires indicated at 6, and maybe connected with the key action where the movement of same will be sufficient to rock the bellcranks.

The lower ends 7 of the bell-cranks are connected with slidable steel spring rods 8, mounted in a bearing 9 which extends across the machine, and the opposite ends of the rods project through shank members .10

' vertically mounted in a cross-bar 11. Suit- Specification of Letters Patent.

Patented Feb. 19, 1918.

Serial No. 146,070.

ably secured to the end of each shank 10 is a punch 12 which registers with perforations 13 in the blanking plate 14. The cross-bar 11 is also provided with slots 15, one slot for each wire rod 8, to permit an up and down movement of the rods 8, with connected shanks 10 and punches 12. This movement is transmitted through a plate 16 which is slidably mounted upon the front face 17 of the cross-bar 15, being secured in this position by bolts l8 which are mounted in slots 19 of suflicient length to permit the sliding movement desired.

The upper portion of the plate 16 is provided with a groove, 20, which extends across the face of the plate, and a projectin shoulder 21. Reciprocal movement is transmitted to the plate 16 through a pair of links 22, pivotally secured to the plate 16 at the lower end and to rocker-arms 23 and 23 atthe upper end. The rocker-arms are pivotally mounted at 24 atjone end to journal members 25 suitably secured, as at 26, to the opposite ends of the cross-bar l1, and the opposite ends of the rocker-arms are forkshaped and are so positioned as to straddle cams 27 and 28. The cams 27 and 28 are suitably secured, as' at 29, upon the main drive-shaft 30, which isjournaled in bearings 31 on-frame Aandiwhich is also provided at one end with a number of reducing pulleys 32 by which the shaft may be driven at different speeds according to the time of the music being played. This shaft is driven from any suitable source by power not here shown.

Mounted on the opposite end of the drive-' shaft is a bevel gear 33 which intermeshes with a pinion 34 mounted on a vertical shaft 35, which shaft is journaled in bearings 36 on the side of the main frame A. The lower end of this shaft is provided with a worm pinion 37 which intermesheswith a worm gear 38, keyed to a shaft 39 which is journaled in the end frames. Mounted on this shaftis a feed drum 40 which engages with anidler drum 41 mounted in a set of ad justable bearings 42.- The paper 43 to be perforated is carrie by a supply drum 44 on a' shaft 45, journaled in bearings 46 which areprovided with a friction producing strip 47 of any suitable material which may be adjusted to create more or less friction on the paper carrying supply drum by bolts 48. This will give the paper, when passing over the different rolls and perforating mechanism, a certain tension. From the supply drum the paper is passed over the blanking plate 14, secured between the two end frames A, and the paper is perforated by the punches 12 at this point. From here the paper passes down between the frictionfeed rolls 40 and 41 which will pull the paper over the face of the blanking plate 1 1, and said rolls will also deliver the paper to a receiving roll or similar device not here shown.

The blanking plate 14 is provided with just as many perforations 13 as there are rods 8, shanks 10 and punches 12, and the lowerv portions of the perforations 14: are slightly enlarged, as at 13, to permit a free discharge of the paper passing through the blanking plate 14.

Th operation of the mechanism will be as follows:

When it is desired to record the music played on the piano, the perforating machine is set in motion at a suitable speed determined by the time of the music. The recording sheet will then travel forward in the direction of arrow at over the blanking plate 14 by. the feed rolls 40 and 41 driven through the gear connections, already described, from the main shaft. The moment one or more keys are depressed by the operator a corresponding number of bellci'anks will be rocked by reason" of the connections 6, between the key action and the bell-crank levers. This will project the outer ends of the spring steel rods 8 forward into the groove 20 or under the 'shoulder 21 on the plate 16, and the reciprocating movement transmitted to plate 16, through links 22, rocker-arms 23 and eccentricsv 33, will thus be transmitted to the outer ends of the single or several rods 8 which have been projected into the path of shoulder 21. The depth of slot 15 permits the outer ends of the spring rods 8. to reciprocate in unison with the sliding plate 16, and the reciprocating movement of the rods will thus be transmitted to the shanks 10, with connected punches 12, and reciprocate these with suflicient speed to perforate a clean continuous slot or single perforation in the paper 43 passing over the blanking plate 14. l

The piano keyor keys upon being released will immediately permit the coil springs 50 to draw the bell-cranks 5 back intonormal position, which position is limited by a stop 51. The spring rods are thus retracted or withdrawn from the path or shoulder 20 and 'Wl1l thus-remain stationary until ,again projected 1nto the path of the shoulder-:21; The

the upper position indicated in Fig.

1, where they will be held out of contact with the blanking die and the paper passing over same.

The perforating mechanism construction as here shown insures a clean, smooth single perforation or slot in the paper and the operation may continue as long as it is desired to record the music being played by the operator.

The materials and finish of the several parts of the mechanism are such as the experience and judgment of the manufacturer may dictate.

Having thus described my invention, what I claim and desire to secure by Letters Patent is-- 1. In a perforating machine, a blanking plate having a plurality of blanking openings therein, a feeding mechanism adapted to feed a recording sheet over said plate, a cross-bar secured above the blankin plate, a plurality of punches vertically an reciprocally mounted in said cross-bar, a plate reciprocally mounted on one side of the bar, a horizontally positioned spring rod slidably connected with each punch and normally holding the latter inoperative, and means for projectingthe end of one or a plurality of spring rods outwardly away from the ppnch into the path of the reciprocating p ate.

2. In a perforating machine, a blanking plate having'a plurality of blanking openlngs thereln, a feeding mechanism adapted to feed a recording sheet over said plate a cross-bar secured above the blanking plate, a plurality of punches vertically and reciprocally mounted in said cross-bar, a shank formed on the upper end of each punch, a slidably mounted spring steel rod passing through each punch shank, a plate reciprocally mounted on one side of the cross-bar, a groove formed on the inner face of said plate, and means for projecting the end of one or a plurality of spring rods into the groove on the reciprocatlng plate.

3. In a machine of the class described a with the perforations in the die, a shank member on the end of each punch, a horizontally positioned, slidably mounted spring rod passing through the upper end of each punch shank, a bell-crank connected with one end of each rodwhich is adapted to be connected with a reciprocating plate mounted on one side of the cross-bar into the path of wh ch the other end of one or a plurality of spring rods are adapted to be projected, and a feedlng mechanism adapted to feed a recording sheet over the stationary die.

4. In a machine of the class described, a stationary die having a plurality of perforareciprocable tions formed therein, a cross-bar secured above the die, a plurality of vertlcally mounted, punches in said bar registering with the perforations in the die, a shankmember on the end of each punch, a horizontally positioned, slidably mounted spring rod passing through the upper end of each punch shank, a bell-crank connected with one end of each rod which is adapted to be connected with a piano action, a power shaft, a pair of eccentrics secured on said shaft, rocker-arms operated by said eccentrics, a link connected to each rocker-arm at one end, a plate mounted on one side of the cross-bar to which the other end of each link is secured and by which the plate is adapted to be reciprocated, a groove formed on the inner face of said plate extending lengthwise of the plate, into which the other end of one or a plurality'of spring rods are adapted to be projected, a feeding mechanism adapted to feed a recording sheet over the stationary die, and means for varying the speed of the feeding mechanism.

5. In a perforating machine, a series of vertically slidable punches having transverse guide openings, horizontally reciprocable means for each punch slidable at one end through said guide openings thereof so as to have said end movable beyond the punches, and vertically recipr'ocablemeans engagable with said ends of the horizontally means upon movement of the latter in one direction to depress same and therewith the punches.

6. In a perforating machine, a series of vertically movable punches, a spring rod for each punch movable transversely of and connected thereto for normally holding the latter raised, means to depress the rods, and means for actuating the rods to move an end of same relative to the punch and into the path of the depressing means to. depress said rods and therewith the punch.

7 In a perforating-machine, a series of vertically movable punches each having a transverse guide, a spring rod for each punch movable in the guide thereof for normally holding the punch raised, means to reciprocate the rods, and means to depress the rods and therewith the punches upon reciprocation of the rods in one direction.

8. In a perforating machine, vertically movable punches, depressing means, reciproeating spring means, means to connect said spring means to the punches to normally hold same raised and to allow said spring means to extend beyond the punches and into the path of said depressing means, and means to move said spring means into the path of the depressing means so as to be depressed by the latter and thereby cause depressing of the punches.

9. In a perforating machine, slidable punches, depressing means, combined spring means for normally holding the punches raised for enabling depression of the latter, means to connect said spring means to the punches to cause the latter to hold the punches raised and to allow of movement of the spring means in one direction independently of the punches to engage the depressing means, and means to move the spring means into the path of the depressing means whereby upon engagement with the depressing means same will be depressed to depress the punches. 1

Inn testimony whereof I have hereunto set my hand, in the presence of two subscribing witnesses.

EDGAR W. MYERS. Witnesses:

MARGARET LEAL, E. O. HURFP. 

